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Vehicle dynamic responses to clothoidal, sinusoidal and parabolic types of transition curves are considered in this paper. The responses such as vehicle motion and wheel-rail forces are significantly dependent on the type of curve. Also the dynamic interaction between the railway car and a track on a switch and a crossing of a standard turnout is considered. It was made for car-running direction “on” and “from” a switch facing point, and for nominal and geometrically imperfect track. The results imply the conclusion that specific transition curve and turnout parameters create a vital cause of dynamic interaction growth between a vehicle and a track.

Railway car dynamic response to track transition curve and single standard turnout